Stanchev, Peter, Karina Angelieva, Yanita Zherkova, Radoslav Pavlov, and George Simeonov. “The Tenth National Information Day: Open Science, Open Data, Open Access, Bulgarian Open Science Cloud”. Digital Presentation and Preservation of Cultural and Scientific Heritage 9 (September 13, 2019): 403–408. Accessed May 21, 2024. https://dipp.math.bas.bg/dipp/article/view/dipp.2019.9.44.